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Tinnitus: Imaging, Endovascular and Surgical Approaches, An issue of Neuroimaging Clinics of North America, E-Book

Tinnitus: Imaging, Endovascular and Surgical Approaches, An issue of Neuroimaging Clinics of North America, E-Book

Prashant Raghavan | Dheeraj Gandhi

(2016)

Additional Information

Abstract

This issue of Neuroimaging Clinics of North America focuses on Imaging of Tinnitus. Articles will include: Neuroscience of Tinnitus; Clinical Evaluation of the Patient with Tinnitus; Arterial Abnormalities Leading to Tinnitus; Paragangliomas and Other Vascular Skull Base Tumors; Dural AV Fistulae: Imaging and Management; Venous Abnormalities Leading to Tinnitus: Imaging Evaluation; Endovascular Intervention in Venous Tinnitus: New Horizons and Future Directions; Emerging Role of Surgical Treatments in the Treatment of Tinnitus; Role of Advanced Neuroimaging and Future Directions; Imaging Interpretation of Temporal Bone Studies in a Patient with Tinnitus: A Systematic Approach; and much more!


Table of Contents

Section Title Page Action Price
Front Cover Cover
Tinnitus: Imaging,Endovascular andSurgical Approaches i
Copyright\r ii
CME Accreditation Page iii
PROGRAM OBJECTIVE iii
TARGET AUDIENCE iii
LEARNING OBJECTIVES iii
ACCREDITATION iii
DISCLOSURE OF CONFLICTS OF INTEREST iii
UNAPPROVED/OFF-LABEL USE DISCLOSURE iii
TO ENROLL iii
METHOD OF PARTICIPATION iii
CME INQUIRIES/SPECIAL NEEDS iii
NEUROIMAGING CLINICS OF NORTH AMERICA\r\r iv
FORTHCOMING ISSUES iv
August 2016 iv
November 2016 iv
February 2017 iv
RECENT ISSUES iv
February 2016 iv
November 2015 iv
August 2015 iv
Contributors v
CONSULTING EDITOR v
EDITORS v
AUTHORS v
Contents vii
Foreword: Tinnitus\r vii
Preface: Tinnitus—More Than Ringing in the Ears\r vii
Neuroscience of Tinnitus\r vii
Clinical Evaluation of Tinnitus\r vii
Imaging Interpretation of Temporal Bone Studies in a Patient with Tinnitus: A Systematic Approach\r vii
Arterial Abnormalities Leading to Tinnitus\r vii
Venous Abnormalities Leading to Tinnitus: Imaging Evaluation\r viii
Dural Arteriovenous Fistulae: Imaging and Management\r viii
Paragangliomas of the Head and Neck\r viii
Surgical Treatment of Tinnitus\x0B viii
Endovascular Interventions for Idiopathic Intracranial Hypertension and Venous Tinnitus: New Horizons\r ix
Advanced Neuroimaging of Tinnitus\r ix
Foreword:\rTinnitus xi
Preface:\rTinnitus—More Than Ringing in the Ears xiii
Neuroscience of Tinnitus 187
Key points 187
ANATOMY OF THE AUDITORY PATHWAY 187
BIOCHEMICAL AND MOLECULAR TRANSDUCTION 188
CENTRAL NETWORK ORGANIZATION 188
PERCEPTION AND NONAUDITORY DIMENSIONS OF SOUND 189
PERIPHERAL AUDITORY SYSTEM RESPONSE TO INSULT 189
CENTRAL DISORDERS OF TINNITUS 190
CLINICAL THERAPY, EXPERIMENTAL APPROACHES, AND FINDINGS 191
SUMMARY 193
REFERENCES 193
Clinical Evaluation of Tinnitus 197
Key points 197
INTRODUCTION 197
CLINICAL EVALUATION OF TINNITUS 198
Basic Otologic Evaluation 198
History 198
Physical examination 199
Audiogram 200
Evaluation of subjective tinnitus 200
Evaluation of objective tinnitus 202
Patulous eustachian tube 203
Palatal myoclonus 203
Tensor tympani/stapedial myoclonus 203
Tinnitus from an abnormal arterial or venous somatosound 203
SUMMARY 204
REFERENCES 204
Imaging Interpretation of Temporal Bone Studies in a Patient with Tinnitus 207
Key points 207
BACKGROUND (EPIDEMIOLOGY, PATHOPHYSIOLOGY, AND ANATOMY: CLINICAL PERSPECTIVE) 207
IMAGING APPROACH 208
Imaging Perspective 208
Imaging Guidelines 208
DIFFERENTIAL DIAGNOSIS 209
VASCULAR CAUSES 210
Vascular Malformations 210
Arteriovenous fistulae 210
Arteriovenous malformations 210
Acquired Arterial Diseases 210
Aneurysms 210
Arterial dissection 211
Atherosclerotic stenosis 212
Fibromuscular dysplasia 212
Congenital Arterial Variants 213
Aberrant internal carotid artery 213
Persistent stapedial artery 215
Venous Causes 215
Sigmoid sinus diverticula and dehiscence 215
High-riding jugular bulb 216
INTRACRANIAL PRESSURE ABNORMALITIES 216
Idiopathic Intracranial Hypertension 216
Intracranial Hypotension 216
NEOPLASMS 217
Posterior Fossa Masses 217
Vestibular schwannomas 217
Endolymphatic sac tumors 218
Jugular Fossa and Middle Ear Masses 218
Paragangliomas 218
Facial nerve schwannomas 220
Facial nerve hemangiomas 220
OSSEOUS CAUSES 221
Otosclerosis 221
Paget Disease 222
MISCELLANEOUS CAUSES 222
Meniere Disease 222
SUMMARY 223
REFERENCES 223
Arterial Abnormalities Leading to Tinnitus 227
Key points 227
INTRODUCTION 227
PATHOPHYSIOLOGY OF VASCULAR PULSATILE TINNITUS 228
ETIOLOGIES OF PULSATILE TINNITUS 228
ARTERIAL CAUSES OF PULSATILE TINNITUS 228
Arteriosclerotic Disease 228
Fibromuscular Dysplasia 228
Arterial Dissection 229
Aberrant Internal Carotid Artery 229
Isolated Stapedial Artery 229
Dehiscence of the Internal Carotid Artery 230
Arterial Compression of the Vestibulochoclear Nerve 231
Cerebral Aneurysms 232
Increased Cardiac Output 232
CAUSES OF PULSATILE TINNITUS ARISING AT THE ARTERIOVENOUS JUNCTION 232
Paragangliomas 232
Other Vascular Skull Base Neoplasms 232
Vascular Malformations 233
Osseous Dysplasias 233
Capillary Hyperemia Involving the Temporal Bone 233
VENOUS CAUSES OF PULSATILE TINNITUS 233
DIAGNOSTIC WORK-UP OF TINNITUS 233
IMAGING STRATEGIES IN THE EVALUATION OF TINNITUS 234
NONINVASIVE IMAGING MODALITIES USED IN THE EVALUATION OF TINNITUS 234
INVASIVE IMAGING EVALUATION OF TINNITUS 234
Catheter Angiography 234
SUMMARY 235
REFERENCES 235
Venous Abnormalities Leading to Tinnitus 237
Key points 237
INTRODUCTION 237
IDIOPATHIC INTRACRANIAL HYPERTENSION 237
SIGMOID SINUS WALL ANOMALIES 238
HIGH-RIDING/DEHISCENT JUGULAR BULB 242
POSTERIOR FOSSA EMISSARY VEINS 243
SUMMARY 244
REFERENCES 244
Dural Arteriovenous Fistulae 247
Key points 247
INTRODUCTION 247
CLASSIFICATION 249
IMAGING FINDINGS 250
GENERAL MANAGEMENT 250
ENDOVASCULAR TREATMENT 252
EMBOLIZATION ACCESS ROUTES 252
Transvenous Embolization 252
Transarterial Embolization 253
EMBOLIC AGENTS 253
REFERENCES 256
Paragangliomas of the Head and Neck 259
Key points 259
INTRODUCTION 259
NORMAL ANATOMY AND IMAGING TECHNIQUE 260
Normal Anatomy 260
Imaging Technique 263
Imaging Protocols 264
PATHOLOGY/IMAGING FINDINGS 267
Pathology 267
Imaging Findings 267
Jugulartympanic paragangliomas 267
Carotid body paraganglioma 272
Preoperative Imaging 272
Angiography 272
Embolization 272
DIAGNOSTIC CRITERIA 274
DIFFERENTIAL DIAGNOSIS 274
PEARLS, PITFALLS, VARIANTS 275
WHAT THE REFERRING PHYSICIAN NEEDS TO KNOW 275
SUMMARY 275
REFERENCES 276
Surgical Treatment of Tinnitus 279
Key points 279
INTRODUCTION 279
CLINICAL EVALUATION 280
NONSPECIFIC TREATMENTS (IE, TREATMENTS FOR OTHER INDICATIONS WITH SECONDARY TINNITUS BENEFIT) 281
SURGERY FOR PRIMARY INDICATION OF TINNITUS 282
Subjective Tinnitus 282
Objective Tinnitus 282
SIGMOID SINUS WALL ANOMALIES 283
SUMMARY 287
REFERENCES 287
Endovascular Interventions for Idiopathic Intracranial Hypertension and Venous Tinnitus 289
Key points 289
BACKGROUND 289
VENOUS TINNITUS 290
IDIOPATHIC INTRACRANIAL HYPERTENSION 290
Mechanism of Venous Stenosis and Venous Hypertension 290
Clinical Management 290
Endovascular Treatment Considerations 291
OTHER CAUSES OF VENOUS TINNITUS AMENABLE TO ENDOVASCULAR INTERVENTIONS 293
IMAGING OF VENOUS TINNITUS 293
ABERRANT VENOUS ANATOMY 293
Advanced Neuroimaging of Tinnitus 301
Key points 301
INTRODUCTION 301
NEURAL CORRELATES OF TINNITUS 301
FUNCTIONAL MR IMAGING IN TINNITUS 302
ADVANCED STRUCTURAL IMAGING 304
MENIERE DISEASE 304
ADVANCED IMAGING OF DURAL ARTERIOVENOUS FISTULAE 305
SUMMARY 310
ACKNOWLEDGMENTS 310
REFERENCES 310
Index 313